#linuxcnc Logs

Dec 15 2020

#linuxcnc Calendar

12:46 AM veegee: Two questions for you guys
12:52 AM veegee: First, what are the protruding horizontal arms for on a sheet metal shear? https://cdn11.bigcommerce.com/s-9fa34wk/images/stencil/800x800/products/8011/13147/CX817__06794.1592215577.JPG?c=2
12:52 AM veegee: The ones on mine are welded to the frame with small welds, just a tad bit bigger than a tack weld
12:52 AM veegee: I want to grind that off and bolt them on instead because I highly doubt its structural
12:52 AM veegee: because they just get in the way and take up a lot of space when the machine isn't being used, which is most of the time
12:52 AM CaptHindsight: those are there to put dents and bruises into your knees on a step shear or brake
12:53 AM veegee: The top (green) part is just some steel angle that's pretty much tack welded to the machine. I'm going to grind it off and use bolts instead
12:54 AM veegee: The bottom part is a rack (as in rack and pinion rack)
12:54 AM CaptHindsight: https://youtu.be/amtNIiW5TS0?t=13 like disjuan
12:55 AM veegee: Turning the hand wheel moves the sliding part forward and back. This part of the mechanism is bolted and can be removed
12:55 AM veegee: Ah so pretty much bolting it to the frame
12:56 AM veegee: many weeks ago when I was much stupider than I am today, I slightly bent my pallet jack by attempting to move this beast
12:56 AM veegee: It's well over 10,000 lbs
12:56 AM CaptHindsight: are your cages for fun or?
12:56 AM veegee: got them for pocket change, using them to store stuff
12:56 AM veegee: like oil, etc
12:57 AM veegee: Currently empty but that's just 5% of the shop space you see, it's 3,300 sq•ft total floor area
12:57 AM veegee: They're nice cages. They stack, and the side doors open up like butterfly wings
12:58 AM veegee: The hinge is in the middle
12:58 AM CaptHindsight: veegee: how do they handle things like business license, occupancy permits etc for a space like yours?
12:58 AM veegee: I already own a software engineering company, I just rented the space under the same company, that's all
12:58 AM veegee: didn't need anything else
12:58 AM veegee: was as easy as renting an apartment
12:59 AM CaptHindsight: does the fire brigade show up for spot inspections?
12:59 AM veegee: no
01:01 AM veegee: But really there's nothing in there so blatant like oily rags next to a furnace
01:02 AM veegee: And the second question was, what's a good way to preheat for welding 4140 chromoly stuff?
01:02 AM veegee: Just a regular propane torch?
01:02 AM veegee: For stuff that can fit, I'd just use a BBQ
01:03 AM veegee: but anything larger, not sure
01:04 AM veegee: And by the way that shear and the press brake beside it are two of the things I got for free haha
01:04 AM veegee: There's a huge band saw and radial arm saw and a bunch of other stuff not in the pic
01:05 AM veegee: If the floor is clean, you can move those machines by hand. But even a grain of sand will make it extremely hard to get them to start rolling and at that point I have to push it with one of the forklifts or tug it with a chain puller
01:07 AM CaptHindsight: https://weldinganswers.com/how-to-weld-4140-steel/
01:07 AM veegee: CaptHindsight and that Hyster in the corner is the very first forklift I got based on your recommendations months ago. It's in such good condition that I really don't want to sell it. But it gets very little use since I got my electric lift
01:08 AM veegee: I got it for $4,000. Paint is in perfect condition, hydraulics all good, hard to let go, ya know?
01:08 AM CaptHindsight: the shop floor I had a few years ago was brand new and coated with aluminum oxide and ceria
01:08 AM CaptHindsight: was like glass, I could mop the floor with soapy water and slide machines around
01:09 AM veegee: Yeah this floor is crap. It had random concrete screws in it when we first got it. I spent a whole week just grinding off any protruding metal
01:09 AM veegee: and then a couple of weeks with concrete patch (which works _really_ well)
01:09 AM veegee: then grind it down with a diamond cup concrete surface grinding wheel
01:10 AM veegee: If I owned this space, I'd fully finish the floor like you described
01:10 AM veegee: but just renting for now :(
01:10 AM CaptHindsight: and sodium silicate
01:11 AM veegee: This area of the floor is coated with something
01:11 AM CaptHindsight: yes, i recall your adventures with the floor
01:11 AM veegee: see the area near the garage door? That's bare concrete
01:12 AM veegee: but a bit further out there's this strange sand coloured "paint"(?)
01:12 AM veegee: it's flaking off pretty easily, no idea what it is
01:12 AM CaptHindsight: likely just a cheap floor enamel
01:12 AM veegee: But whatever coating it is, it's not applied to the entire floor. Just a few meters behind the press brake, they stopped coating it
01:13 AM CaptHindsight: what i have on the current floor is a solvent alkyd
01:13 AM veegee: I have to get one of those robot floor vacuums to constantly pick up the flakes in this area because the shop cat walks around and it gets on the paws
01:13 AM CaptHindsight: to clean I just mop with solvent and it smears it clean
01:13 AM veegee: and I don't want it getting into the digestive system
01:14 AM veegee: yeah yeah you have a much better floor than me >:(
01:14 AM CaptHindsight: no smoking while dissolving the floor coatings here
01:15 AM veegee: I'll spill some acetone and see if it dissolves it
01:15 AM CaptHindsight: the floor is only ~13 years old, they used to store antique cars here
01:15 AM veegee: damn
01:15 AM CaptHindsight: but with all the spills they made quite a mess of the floors
01:15 AM veegee: This one must be way older. But it is quite hard high pressure industrial concrete.
01:16 AM CaptHindsight: oils and lubes would attack the paint
01:16 AM veegee: Spilled enough hydrocarbon solvent on this, no effect
01:16 AM CaptHindsight: thus is one of those multi-unit industrial buildings
01:16 AM veegee: yeah same here
01:16 AM CaptHindsight: all concrete floors and tilt up exterior walls
01:17 AM CaptHindsight: but only sheetrock and metals studs for the interior
01:17 AM CaptHindsight: so it's not very nice, you get the fumes from your neighbors
01:17 AM veegee: all concrete in here since it's the last unit
01:17 AM veegee: and so many vent ports on the ceiling and wall
01:18 AM CaptHindsight: and they cheaped out on insulation, and the top of all the walls
01:18 AM veegee: and neighbours use their unit to store lumber
01:18 AM CaptHindsight: you can see your neighbors light coming through
01:18 AM veegee: yeah have that problem too
01:18 AM CaptHindsight: so fumes just waft over like you are in their space
01:18 AM veegee: a bit of positive pressure would solve that
01:19 AM CaptHindsight: and the assholes don't warn us if they spray with isocynates
01:19 AM veegee: get em back with something better like hydrogen cyanide
01:19 AM veegee: show 'em how it's done properly
01:20 AM CaptHindsight: nah x-ray source that tracks their movement
01:20 AM veegee: ah good idea, the slow death can be savoured
01:20 AM CaptHindsight: looking for space
01:21 AM CaptHindsight: it's really a bad time here
01:21 AM veegee: but really a positive pressure blower should take care of it, no?
01:21 AM CaptHindsight: even worse owners and spaces
01:21 AM veegee: it doesn't take much, just enough to create a pressure gradient
01:21 AM CaptHindsight: no way to add one unless i cut into a wall or ceiling
01:22 AM veegee: no vents already available?
01:22 AM CaptHindsight: nope
01:22 AM veegee: damn, that's a pain in the ass
01:22 AM CaptHindsight: yup
01:22 AM veegee: I lucked out with this space. It's quiet and no one bothers us
01:23 AM CaptHindsight: ex-neighbors had a barking dog
01:23 AM veegee: neighbouring unit just stores lumber and filing cabinets with documents
01:23 AM veegee: most annoying thing they do is turn on the radio to some shitty pop music station
01:23 AM veegee: but they do sell us lumber at 1/3 the cost of hardware store so I don't mind :)
01:24 AM CaptHindsight: we get the clickity clack of the pallet jacks in the service corridor
01:24 AM veegee: pallet jacks make noise?
01:25 AM CaptHindsight: the floor has slots cut into the concrete as expansion joints
01:25 AM veegee: speaking of which, yeah I bent one of my pallet jacks (not the low profile one in the pic, the other one) when attempting to lift the shear
01:25 AM CaptHindsight: oh about every 10 feet (3m)
01:25 AM veegee: what's the best way to bend it back? I don't have a shop press yet
01:25 AM CaptHindsight: heh, I bent a cart earlier today as well moving batteries
01:25 AM veegee: I do have hydraulic cylinders and bottle jacks. Just waiting for a shop press to show up for pocket change
01:26 AM veegee: It still fully works
01:26 AM CaptHindsight: where is it bent?
01:26 AM veegee: the bend is at worst a minor annoyance
01:26 AM veegee: right at the joint near the end closest to you
01:26 AM veegee: like imagine forklift forks that are overloaded
01:26 AM veegee: they'd deform at the 90º bend
01:27 AM veegee: so like that
01:28 AM veegee: https://static.cisco-eagle.com/catalog/images/category/Safety_Ergonomics/low-level-pallet-racks.jpg
01:29 AM veegee: Like imagine if that load is too heavy near where the forks are connected to the main structure with the big wheels (no idea what to call it). It would concave
01:29 AM CaptHindsight: 1000 hammer hits
01:30 AM CaptHindsight: there was a maintenance guy I had next door years ago that fixed everything by hammering
01:31 AM veegee: For some reason I don't know how hammering would help in this case
01:31 AM veegee: it's like trying to hammer a bent forklift fork
01:31 AM CaptHindsight: I'd hear dink dink dink outside while he would be straightening some found item
01:31 AM veegee: I think the only way is with a shop press to bend it back in the opposite direction
01:31 AM CaptHindsight: a hinge, nails etc
01:32 AM CaptHindsight: you might get it back some
01:34 AM CaptHindsight: hhahaah, Biden has won so many times now he is our 53rd president
01:34 AM CaptHindsight: catching up on the news here
01:34 AM XXCoder: 59 cases dropped or lost from trump team
01:34 AM XXCoder: so its 45 + 59
01:34 AM XXCoder: ;)
01:35 AM CaptHindsight: yeah
01:35 AM veegee: yeah the circus going on over there is entertaining
01:35 AM CaptHindsight: oh well
01:35 AM CaptHindsight: sure from the outside, I'm stuck here
01:35 AM XXCoder: barr had a meeting with trump and are resigning
01:35 AM veegee: https://www.youtube.com/watch?v=OsVj5OBKONU ugh not the same problem I have
01:35 AM veegee: His problem is easier to fix
01:35 AM XXCoder: "resigning"
01:36 AM veegee: My problem is the entire leg is slightly bent at the joint
01:38 AM CaptHindsight: is is curved?
01:38 AM CaptHindsight: or just no longer a 90 at the corner?
01:54 AM veegee: CaptHindsight < 90º at the corner
01:54 AM veegee: not curved
01:54 AM veegee: because I put it right up against the base of the shear
01:55 AM veegee: so the entire force of gravity of the shear was along the base of the forks where they're connected
01:56 AM veegee: so it was like a point load. Essentially like putting it in a press brake lol
01:56 AM CaptHindsight: yeah but how to do the opposite
01:56 AM veegee: that's the question
01:57 AM veegee: luckily the extent of the damage is annoying at worst so it's still a fully functioning pallet jack
01:57 AM CaptHindsight: support the inside corner
01:57 AM CaptHindsight: and press from the sides
01:58 AM CaptHindsight: cut a slit, bend and weld :)
01:58 AM veegee: It might have to come to that
01:59 AM veegee: but I'm not super worried since the worst that could happen is a load drops like 1cm to the ground
01:59 AM veegee: on another note, TIG welding pure copper: https://www.youtube.com/watch?v=cYpYGbC2Drg "if you're using argon, you're fighting a losing battle"
01:59 AM veegee: I'm going to test that tonight
02:00 AM veegee: I don't have a helium cylinder but I do have a high power TIG machine and a lot of argon
02:00 AM veegee: and high current water cooled torches with thick tungsten
02:01 AM veegee: I wonder how oxy acetylene welding copper would go. Would it be more like oxy acetylene casting lol
02:02 AM veegee: I bought a HP 6031A 120A power supply and the terminals are aluminum for some reason
02:03 AM CaptHindsight: blob:null/275055d0-5d1d-4137-902f-53d45985f75e
02:03 AM veegee: I need to disassemble that and weld some nice copper or brass terminals
02:04 AM CaptHindsight: https://s7.images.keysight.com/s7viewers/html5/ZoomViewer.html?asset=Keysight/PROD-839414-IS
02:05 AM CaptHindsight: worked that time :)
02:05 AM CaptHindsight: I'm outtah here
02:05 AM CaptHindsight: hasta
02:07 AM veegee: yeah hate those screw terminals
02:07 AM veegee: it's 120A and they give us these tiny screws
03:04 AM Loetmichel: mornin'
03:04 AM Loetmichel: sooo, wife successfully delivered to the hospital for hip surgery. Lets hope it works out THIS time.
03:04 AM Loetmichel: Sidenote: MAN that Merc (GLC350e) of my wifes is ungainly. you cant see a thing compared to the old BMW convertible.
03:04 AM Loetmichel: it has a nice kick to it though, 211hp+85kw electric get even those 2.1 tons into motion quick.
03:10 AM Deejay: moin
04:51 AM JT-Cave: morning
04:52 AM XXCoder: good morning
05:51 AM Tom_L: morning
05:51 AM JT-Cave: yo
05:51 AM XXCoder: good morning sir tom
05:52 AM Tom_L: 28F hi 32 possible snow
05:53 AM XXCoder: send some
05:53 AM XXCoder: its boring rain here
05:53 AM Tom_L: might just send a slushie from the sounds of it
05:54 AM JT-Cave: 24.6°F in the coop
05:55 AM JT-Cave: I tried to run the drill too fast drilling through the tile and burned the bit up
05:57 AM XXCoder: ow
05:58 AM JT-Cave: I drilled a sample hole in a bit of scrap and it went right through lol
05:58 AM JT-Cave: got a bit in a hurry I guess...
06:45 AM JT-Cave: hmm the C0-10DD1E-D looks like a better PLC for stepping off to on max .5ms and same for on to off
06:59 AM rs[m]: JT-Cave: is the click programming software useable under WINE?
07:02 AM JT-Cave: never used wine before
07:04 AM JT-Cave: opps thats ms not us so not as fast as the other click
07:13 AM Tom_L: not gonna use a rpi?
07:14 AM JT-Cave: no clue yet still exploring
07:27 AM unterhaus: the high power section of one of my servo drives was probably shorted
07:28 AM unterhaus: the manual says there is a short circuit protection, but it's not a fuse
07:28 AM unterhaus: the fault is "return to factory", but there is no factory
07:29 AM unterhaus: trying to figure out what I'm looking for. I traced the output circuit, and that's not it
07:29 AM unterhaus: also replaced the power module
07:32 AM unterhaus: it's a bit of a pain to probe because the logic board is in the way and is connected by a pin header
07:33 AM unterhaus: may have thrown away all of my ribbon cable
07:50 AM JT-Cave: hmm the stepper drive wants a 5vdc step and direction...
07:52 AM unterhaus: at least I found out where my oscilloscope was
08:35 AM JT-Shop: that's good
08:36 AM JT-Shop: the usps has been doing weird stuff since biden was elected like delivering packages at 8am... they never did that in the past
08:59 AM JT-Shop: at least I got the gear and one chain in...
09:38 AM gregcnc: JT-SHOP we have had that here for years probably. Sunday even, though I suspect most is amazon
09:54 AM JT-Shop: this package came from ereplacementparts
09:55 AM gregcnc: was it late?
10:00 AM JT-Shop: it arrived at poplar bluff yesterday morning at 8:30am and usually goes out with the normal carrier so odd
10:00 AM JT-Shop: I have two packages that fell under the radar, on the way but we don't know where it is lol
10:00 AM gregcnc: right, i've seen that when it should have been delivered the day prior
10:29 AM Tom_L: i used to know when usps would come but not anymore.. very random
01:28 PM Tom_L: snow
01:40 PM Tom_L: testing this new spindle motor a bit cutting some more softjaws. running a .1875 cutter full width ~.050" a pass @ .0025 chip load it wasn't even warm when i was done
01:41 PM Tom_L: i would have burnt the sherline motor up doing that
01:41 PM Tom_L: or made it awfully uncomfortable to touch
01:42 PM Tom_L: probably could have gone deeper but i didn't want the chips to bind in the slot
01:45 PM gregcnc: are you sure that sherline motor was good?
01:45 PM Tom_L: yeah
01:45 PM Tom_L: i had 2 the one on it was new
01:53 PM Tom_L: they're only around 200w near as i can tell
01:54 PM gregcnc: it's only a ~20W cut if aluminum, 3kRPM
02:05 PM Tom_L: are you suggesting i push it harder?
02:11 PM gregcnc: only if you need to
02:13 PM gregcnc: I was calculating a lot of cuts after stalling the 700W spindle a few times in the smaller Emco I had
02:14 PM Tom_L: i don't push it, no reason to here really
02:16 PM Tom_L: the tool table i have set up for the sherline is alot slower than that
02:16 PM Tom_L: it'll take some time to readjust it for the new setup
03:42 PM CaptHindsight: Tom_L: did your new spindle motor finally arrive? I recall the shipping drama
03:45 PM Tom_L: after 9 wks yes
03:45 PM Tom_L: any more luck with the new RTAI?
03:47 PM Tom_L: https://www.youtube.com/watch?v=rX4eP3QLwo0&t=5s
03:48 PM Tom_L: tried building 2.8 under wheezy and the RTAI is too old
03:52 PM Tom_L: the heavier belt just barely fit: http://tom-itx.no-ip.biz:81/~webpage/cnc/Mill_Steel/Spindle/Encoder1.jpg
03:52 PM CaptHindsight: Tom_L: i heard the Linux 5.10 LTS was just released
03:53 PM CaptHindsight: I think he might focus on work for RTAI on that
03:53 PM Tom_L: sounds great
03:53 PM Tom_L: if it works i might try buster on that old mb just to see
03:54 PM CaptHindsight: he thinks the problem is more in LCNC vs in RTAI
03:54 PM Tom_L: it didn't recognize the kernel version when i tried building it
03:55 PM CaptHindsight: likely v4.19.152
03:55 PM Tom_L: sounds right
03:55 PM CaptHindsight: Andy made debs and posted them
03:55 PM Tom_L: using ^^ that one?
03:56 PM Tom_L: do you know where he posted em?
03:56 PM CaptHindsight: https://www.linuxcnc.org/temp/
03:57 PM Tom_L: might try that later
03:57 PM Tom_L: anybody else test it?
03:57 PM Tom_L: those are all 64bit
03:57 PM CaptHindsight: just Andy and someone on the wiki that won't follow directions
03:57 PM CaptHindsight: wiki/forum
03:58 PM Tom_L: don't think that would work on the indel D525 board
04:08 PM _unreal: lets seee ifI can get anything done tonight before passing out
04:08 PM _unreal: got NOTHING done yesterday
04:08 PM CaptHindsight: Tom_L: it's going to take more time that nobody has right now to debug RTAI
04:09 PM _unreal: trying to figure out how to wire my 7i96 to my VFD
04:09 PM _unreal: not finding much of anything related to MY VFD
04:11 PM _unreal: My spindle is the hy01d511b
04:11 PM _unreal: not that that really matters looks like most Huanyang wire similar
04:14 PM _unreal: can anyone point me to a page talking about how to connect the 7i96 to a VFD? I litteraly can not find a single page
04:15 PM _unreal: ?
04:15 PM _unreal: is there any body out there.... OOOOOoooooooo
04:17 PM JT-Shop: https://gnipsel.com/images/wood-working/delta-planer/
04:22 PM _unreal: 25GAL brew pot NICE
04:22 PM Tom_L: CaptHindsight, i'm sure of that
04:23 PM _unreal: Tom_L, I'm trying to get the VFD wired up
04:23 PM _unreal: I have yet to find any info on how to wire a VFD to the 7i96
04:23 PM _unreal: no images no pages, no videos nothing
04:24 PM _unreal: ton's of pages refering to the RS485 though
04:24 PM _unreal: I dont have the adapter :(
04:24 PM Tom_L: JT-Shop, run a test cut yet?
04:26 PM Tom_L: https://www.forum.linuxcnc.org/9-installing-linuxcnc/36324-linuxcnc-2-8-pre-latest-7i96?start=10
04:28 PM Tom_L: https://www.youtube.com/watch?v=1NF8EFoPlrk&list=PLRnK7QUoVbABwn5R7oQa_h22c2vQUEDFS&index=177
04:31 PM JT-Shop: Tom_L, still waiting on parts, got the gear box done but no gasket yet to assemble it
04:31 PM JT-Shop: both packages are lost in space
04:34 PM _unreal: I just said tome I DONT have the rs485 adapter
04:34 PM _unreal: Tom_L,
04:35 PM _unreal: that video talks about the rs485
04:35 PM _unreal: that forum link is a bunch of people arguing at each other lol
04:35 PM t4nk_freenode: yeah, Tom_L, how dare you! you should learn to read!!
04:35 PM t4nk_freenode: :b
04:38 PM _unreal: http://www.mesanet.com/pdf/parallel/7i96man.pdf
04:38 PM _unreal: that only talks about a spindle encoder
04:38 PM _unreal: i litteraly have NO damn i dea how to wire the spindle.
04:38 PM _unreal: theres no details
04:38 PM _unreal: just mind blowing
04:38 PM _unreal: not even a picture
04:39 PM t4nk_freenode: what's a vfd?
04:39 PM _unreal: variable frequence drive
04:39 PM _unreal: I hve this one
04:39 PM _unreal: hy01d511b
04:40 PM _unreal: t4nk_freenode, basicly this only water cooled version https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.amazon.com%2FSpindle-Inverter-Variable-Frequency-Engraving%2Fdp%2FB0777FBVG3&psig=AOvVaw1FPplOb1_KuAw86I8VRqlm&ust=1608158338640000&source=images&cd=vfe&ved=0CA0QjhxqFwoTCPCBluiG0e0CFQAAAAAdAAAAABAD
04:42 PM _unreal: and PCW is not on line @#$@# bleep
04:42 PM t4nk_freenode: "Really robust spindle and VFD, Only down side is having to do some research on wiring, wiring gauge, and reading through the manual for programing. But it works great. "
04:43 PM _unreal: the VFD side is easy
04:43 PM _unreal: the manual talks about it in GREAT detail
04:43 PM _unreal: I just deont know how the HELLLLL to wire it to the mesa
04:43 PM _unreal: the manual doesnt really talk about wiring up a spindle
04:44 PM _unreal: BUT it talks the shit out of using rs485
04:44 PM _unreal: the manual for the VFD covers rs485 and direct wiring in great detail. the 7i96 not so much
04:45 PM enleth: _unreal: configure one of the VFDs GPIOs as "run" and wire that to any spare OUT on the mesa
04:45 PM _unreal: about anything spindle related
04:45 PM enleth: _unreal: then configure that in HAL, possibly using stepconf
04:45 PM _unreal: I need speed control
04:45 PM _unreal: I dont know what to connect to
04:46 PM enleth: _unreal: ah, there doesn't seem to be an analog output on that board
04:47 PM _unreal: @#$^#&%@$%^@#$%@^#
04:48 PM _unreal: well thats useless
04:48 PM roycroft: i believe you can get a pendant controller daughterboard that can control a vfd
04:48 PM _unreal: if I have to buy parts just to get a spindle to work, I'm just going to buy a planetcnc controller and say FUCK IT
04:49 PM _unreal: what a waste of time/money
04:49 PM enleth: _unreal: how exactly did you decide to buy 7i96 of all the possible mesa parts?
04:49 PM _unreal: they are VERY highly rated/recomended
04:50 PM _unreal: the biggest hurdles I'm running into are trying to solve software issues and hardware issues.....
04:51 PM enleth: that covers all types of issues for a machine, so, uh
04:51 PM _unreal: all in all it just leads me to come to the conclusion lcnc though being out there for some time. in whole is VERY imature as far as software maturity.
04:51 PM Tom_L: does that vfd have an analog interface?
04:51 PM _unreal: analog and digital
04:52 PM Tom_L: go that route then
04:52 PM _unreal: but I dont have a digital adapter (RS485), ether USB adapter
04:52 PM _unreal: rs485 7i96
04:52 PM Tom_L: for analog?
04:52 PM _unreal: Tom_L, I hate to but I jus may
04:53 PM enleth: _unreal: ah, wait
04:53 PM Tom_L: i used analog on mine
04:53 PM _unreal: there is an adapter card to give RS485 for the 7i96
04:53 PM enleth: _unreal: you should be able to reconfigure one of the stepgen channels to do PWM
04:53 PM _unreal: I need a 0-10v
04:53 PM enleth: that's just a capacitor away from being 0-10V
04:53 PM _unreal: for PWM true
04:53 PM enleth: and a resistor, maybe, or something
04:54 PM enleth: analog outputs are a lie, they're all PWM or similar tricks and some smoothing
04:54 PM burklefoo: The 7I96 has no modbus support so you cannot use the RS-485 for controlling a VFD
04:54 PM _unreal: enleth, whats bothering me the most is that the planetcnc hardware software is VASTLY userfriendly and linux based
04:55 PM _unreal: burklefoo, it talks about rs485 IN the manual
04:55 PM roycroft: what is hardware software?
04:55 PM _unreal: http://www.mesanet.com/pdf/parallel/7i96man.pdf
04:56 PM _unreal: roycroft, ? AHHHHH.....
04:56 PM _unreal: eheheh
04:56 PM Tom_L: pcw, what was that 1 channel analog adapter you had?
04:56 PM Tom_L: maybe he could use one of those
04:56 PM burklefoo: The 7I96 has a RS-485 interface (mainly used for I/O expansion)
04:56 PM _unreal: pcw isnt online
04:56 PM Tom_L: yes he is
04:56 PM _unreal: ?
04:56 PM Tom_L: you just don't know it
04:56 PM enleth: _unreal: https://forum.linuxcnc.org/38-general-linuxcnc-questions/37845-7i96-can-t-get-pwm-output-solved
04:56 PM _unreal: then he's other an other handle
04:57 PM roycroft: yes, that interface is for the expansion boards
04:57 PM enleth: _unreal: pcw's answer pretty much confirms that 7i96 can and will support your VFD with no other hardware using one of the stepgen outputs configured as PWM
04:57 PM burklefoo: You could use a spare isolated output to get a 0-10V analog voltage with 2 resistors and a capacitor
04:58 PM enleth: _unreal: and he refers to a 7i96 setup utility that can configure this, as well as a forum thread
04:58 PM Tom_L: i think the vfd will do analog or pwm
04:58 PM Tom_L: so he wouldn't even need the 3 components
04:59 PM enleth: high enough PWM frequency is no different from analog to many "analog" inputs on industrial hardware
05:00 PM enleth: the VFD manual might in fact say explicitly to use a specific PWM frequency or higher to skip any smoothing capacitors
05:00 PM Tom_L: what manual?
05:00 PM burklefoo: Yeah, If it will do PWM, nothing more is needed
05:00 PM Tom_L: :)
05:00 PM _unreal: I've had nothing but problems with the 7i96 utility
05:00 PM enleth: Tom_L: well, he said the VFD has a manual, so it might provide this info
05:00 PM _unreal: pnconfig on the other had I have had no issues
05:01 PM Tom_L: enleth, you gotta read it
05:01 PM roycroft: i could be wrong, as i often am, but i though the huanyang vfds only did analog speed control
05:01 PM enleth: _unreal: pncconf might be able to set a step output to PWM as well
05:01 PM _unreal: roycroft, they do ONLy do analog direct control and they do serial rs485
05:01 PM _unreal: you are correct roycroft so far as I can tell. NO ERROR
05:01 PM _unreal: :)
05:02 PM _unreal: loading up pnconfig right now again
05:02 PM Tom_L: i see no problem then. hook up a pwm output with pwmgen
05:03 PM burklefoo: I dont think pncconf knows about PWM outputs on a 7I96, so you would need to do that by hand in the hal file
05:03 PM enleth: can't check, all I have here is 7i77 and 7i76e, but their outputs could be changed between several modes by pncconf, so I expect 7i96 to be no different
05:03 PM enleth: might be wrong, though
05:05 PM _unreal: three is no PWM listed in pnconfig so far as I can tell unless I'm totally overlooking it
05:05 PM enleth: _unreal: look for the 5 step outputs, see if there's a combo box next to them listing their modes
05:06 PM _unreal: thats 7i96 setup util
05:06 PM Tom_L: _unreal, did you see what burklefoo just said?
05:06 PM _unreal: I have YET to get that util to produce a working file
05:06 PM Tom_L: so stop using it then
05:06 PM _unreal: I have NEVER USED IT lol
05:07 PM _unreal: it doesnt work for me no file I have produced with the 7i96 setup util has ever produced a usable working config INI file
05:07 PM Tom_L: that may be a contributing factor for not having a working file from it
05:07 PM _unreal: I've had 100% failure
05:07 PM _unreal: no 99% I did have one early on work
05:08 PM burklefoo: the 7i96 utility has not been updated in a while, I dont think it works with the multi-spindle update in LinuxCNC
05:08 PM _unreal: ARG..
05:09 PM _unreal: looking at it it says 4 step gens AND pwm
05:09 PM _unreal: Ineed 4
05:09 PM _unreal: 5
05:09 PM _unreal: if that disables a step gen port its useless to me
05:10 PM enleth: you neeed 5 stepgens for your machine?
05:10 PM _unreal: YAAAA.. xyz then my AB for til/rotate
05:10 PM _unreal: tilt
05:11 PM burklefoo: As I mentioned, you could also use a free isolated output for generating 0-10V
05:11 PM _unreal: burklefoo, go on....
05:11 PM _unreal: and resistors and cap for smoothing to get a voltage value output
05:11 PM burklefoo: or a $5.00 "Mach 5 axis BOB"
05:12 PM _unreal: huh?
05:14 PM enleth: spindle control is the least real-time-critical output so it can be handled by a shit breakout board separate from the Mesa, especially when Mesa handles the spindle encoder, which is what really matters
05:15 PM burklefoo: https://www.ebay.com/itm/1pcs-5-Axis-CNC-Breakout-Board-For-Stepper-Driver-Controller-mach3/201414938686?hash=item2ee544103e:g:GTkAAOxyBjBTWMPR
05:17 PM enleth: _unreal: ultimately it seems that 7i96 is not a good fit for a 5-axis machine, with only 5 step outputs - many other Mesa boards have step/servo outputs precisely because of this, so that the last one could be used to signal a VFD
05:18 PM enleth: _unreal: sure, it is recommended by a lot of people because a lot of people only have 3-axis machines and 7i96 is cheaper than the alternatives
05:19 PM enleth: but your machine really needed something like 7i76/7i76e
05:19 PM burklefoo: well if you add the cheap BOB you get spindle analog plus 3 more axis (8 total)...
05:20 PM enleth: take that "3 more" with a grain of salt, though
05:20 PM enleth: for static positioners, maybe
05:20 PM enleth: *have 6 step/servo outputs precisely because of this
05:21 PM _unreal: ok I'm back just had my daughter stop PLAYING on her computer to go light the charcoal grill
05:22 PM enleth: although I will agree that Mesa's product selection information is a wee bit less than crystal clear
05:22 PM _unreal: what is the cheap bob?
05:22 PM t4nk_freenode: order yourself a relais for that darned cnc for your poor daughter while you're at it, _unreal ... fgs.. finish it
05:22 PM _unreal: wee bit lol
05:22 PM enleth: no comparison charts and so on
05:22 PM _unreal: what is the CHEAP BOB your talking about
05:22 PM _unreal: ?
05:23 PM burklefoo: I left a link
05:23 PM enleth: _unreal: burklefoo pasted an ebay link
05:23 PM _unreal: oh hehe right as I took off to go fetch small child
05:23 PM enleth: _unreal: that's a cheapest shittiest thing normally used to control the whole machine with mach3
05:23 PM enleth: will do as an I/O expander
05:24 PM _unreal: on lcnc?
05:24 PM enleth: yes, linuxcnc can drive a shit mach3 BOB and a Mesa card at the same time
05:24 PM enleth: and even synchronize the axis outputs if you really need it to
05:25 PM _unreal: so its a knock off KNOCK OFF usb cnc mach3 usb cnc controller LOL
05:25 PM _unreal: boy thats a mouth full
05:25 PM _unreal: keyboard full
05:25 PM _unreal: I have a USB mach3 adapter one of those EAGLE one's and I HATE IT
05:25 PM _unreal: mach3 rather
05:25 PM enleth: (_unreal: fun fact: you can mix servo and stepper axes too, if you ever need to)
05:26 PM _unreal: yay
05:26 PM _unreal: ...
05:26 PM _unreal: palm to face I'm typing my responce to my daughte
05:26 PM burklefoo: Its just a parallel port BOB (it only uses USB for 5V power)
05:26 PM _unreal: rhum
05:26 PM enleth: that is actually useful if you have a servo-based machine and buy a stepper-driven 4th/5th axis, or vice versa
05:27 PM enleth: you don't get to pick when you buy used
05:27 PM enleth: so it's nice that it would still work
05:27 PM _unreal: wait I uses usb or par port?
05:27 PM _unreal: on that BOB?
05:27 PM burklefoo: If you add it to the 7I96's expansion port you get 3 more stepgens, analog spindle output, 5 misc inputs and a few outputs
05:28 PM enleth: _unreal: it's intended to use a parport, but 7i96 can drive it - you can do it either way
05:29 PM enleth: _unreal: https://forum.linuxcnc.org/10-advanced-configuration/35265-mesa-7i96-parallel-bob
05:29 PM enleth: _unreal: the key thing here is loading the 7i96_5abob_d.bit firmware onto 7i96
05:29 PM enleth: but if you have a parport, it's fine to use it too
05:36 PM _unreal: thanks for the help, I just ordered the planetcnc conroller. I can NOT on good conscience use a controller I have to SOLVE.
05:36 PM _unreal: in a business environment
05:37 PM _unreal: wayyy to much risk
05:38 PM Tom_L: good call
05:38 PM Tom_L: linuxcnc is in machine shops globally
05:39 PM _unreal: ?
05:39 PM _unreal: with my line of work I'm working with machine shops endlessly not one of them has a LCNC system
05:40 PM _unreal: they all use haas or other brand name etc.... systems
05:40 PM _unreal: I have about 30 machine shops phone numbers in my phone for fort lauderdale
05:40 PM _unreal: mostly haas
05:41 PM Tom_L: https://www.youtube.com/watch?v=35tHYaDUmZQ
05:41 PM Tom_L: yeah, haas are cheap
05:42 PM _unreal: speaking off. with any luck the @#%@#$%@#$%@#$@!#%#$^@#!$%~@#$!$% project manager of this boat I'm working no curently will stop with the BS and let me do the vacuum resin Injection finally
05:42 PM CaptHindsight: has haas
05:42 PM _unreal: I keep telling the DUMB MOTHER FUCKER. the mosture meter is going off becuase of the METAL tank because it detects metal tanks and water....
05:43 PM _unreal: lol the first 10 seconds where all I needed to see OH SHIT the flexd arm broke off
05:44 PM roycroft: the tormach controller is linuxcnc with a proprietary front end, isn't it?
05:44 PM Tom_L: i think so
05:44 PM roycroft: there's a lot of those in commercial machine shops
05:45 PM _unreal: wtf... 10th phone call tonight
05:45 PM JT-Cave: roycroft, yes in a way it's a front end you can use as well
05:45 PM CaptHindsight: i thin the source to the front end is available somewhere
05:46 PM t4nk_freenode: ey _unreal .. what controller did you buy now then?? cnc usb controller?
05:50 PM t4nk_freenode: as in https://planet-cnc.com/product/cnc-usb-controller-mk3-9-axis/
05:50 PM _unreal: freaking hell
05:50 PM t4nk_freenode: ?
05:51 PM _unreal: brb go to go next door
05:51 PM _unreal: elderly neighbor
05:51 PM _unreal: her husband died last month so now I'm her replacement "problem solver"
05:51 PM _unreal: 4 year cancer battle
05:52 PM _unreal: sad, good buy, jewish, he'll be missed
05:52 PM _unreal: good guy
05:52 PM t4nk_freenode: lol @problem solver
05:52 PM CaptHindsight: t4nk_freenode: she has no CNC problems :)
05:52 PM _unreal: t4nk_freenode, thats what I just ordered
05:53 PM t4nk_freenode: mmmmm, expensive
05:53 PM t4nk_freenode: I wonder what chip they got on there
05:53 PM CaptHindsight: _unreal: hope it works out for you, may you be blessed with many happy CNC
05:53 PM t4nk_freenode: or is it an fpga
05:53 PM rs[m]: _unreal: i wonder if your boats have square prop shafts
05:53 PM t4nk_freenode: lol
05:54 PM _unreal: I have an older version which drives my home machine
05:54 PM _unreal: the software is SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO powerful
05:54 PM _unreal: lots of features
05:54 PM _unreal: no lcnc version GUI I've found has even a fraction of the features the pcnc software has
05:54 PM CaptHindsight: blessed be his CNC oh invisible angry man in the sky
05:54 PM JT-Cave: why are you here?
05:55 PM XXCoder: jt dont think unreal saw that
05:55 PM CaptHindsight: JT-Cave: mostly to test us
05:55 PM JT-Cave: ain't testing me he is usually on ignore lol
05:55 PM CaptHindsight: patience, self control etc etc
05:56 PM roycroft: an unusual character, that one
05:57 PM JT-Cave: for sure
05:58 PM roycroft: i still think it has to do with excess entropy in florida
05:58 PM JT-Cave: most of the pullets have their head under their wing for a snug as a bug night
05:58 PM JT-Cave: could be
05:59 PM CaptHindsight: roycroft: full of entropy or something
05:59 PM JT-Cave: tis plausible
06:00 PM burklefoo: damn, blondie got mud all over my pants
06:00 PM JT-Cave: well time to wander upstairs
06:01 PM XXCoder: have fun
06:02 PM t4nk_freenode: so, _unreal .. that board of yours probably has an LPC4357FET256 on it, worth 10euro including shipping ;)
06:03 PM CaptHindsight: ARM SOC, kewl
06:04 PM t4nk_freenode: yeah, nice chip, ethernet, high speed usb
06:04 PM CaptHindsight: smoothieboard
06:04 PM CaptHindsight: poopieboard
06:04 PM CaptHindsight: https://www.nxp.com/part/LPC4357FET256#/
06:05 PM CaptHindsight: LPC1769 on the poopie
06:05 PM CaptHindsight: https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/lpc1700-cortex-m3/512kb-flash-64kb-sram-ethernet-usb-lqfp100-package:LPC1769FBD100
06:07 PM t4nk_freenode: that package might be better to handle instead of a bga
06:07 PM t4nk_freenode: but m4!=m3
06:10 PM rs[m]: 1769 is a nice part
06:10 PM CaptHindsight: runs gerbils
06:11 PM Loetmichel: Hmm, IIRC someone wanted to know how i do my "Alu-origami" Enclosures... just remembered i have two pictures that explain it... ->
06:11 PM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=17967&g2_imageViewsIndex=1
06:11 PM Loetmichel: http://www.cyrom.org/palbum/main.php?g2_itemId=17970&g2_imageViewsIndex=1
06:11 PM CaptHindsight: maybe his Mesa boards and BLDC drives got smited?
06:11 PM rs[m]: CaptHindsight: what is a gerbil? a rodent?
06:11 PM CaptHindsight: GRBL
06:12 PM rs[m]: ah ok, that runs on everything i suppose
06:12 PM Loetmichel: second pic: blue is half depth slotting, black is inner contour cutting, red is outer contour cutting of 1.5mm Alu sheet on a CNC router.
06:13 PM CaptHindsight: if his boards are possessed by the devil or smited then he's out-ah luck
06:14 PM rs[m]: 80% of his issues are missing / bad ground connections
06:14 PM CaptHindsight: possessed by an evil spirit voids most factory warranty's
06:16 PM roycroft: rs[m]: that's not at all uncommon
06:19 PM roycroft: i do not understand why so many people think that good grounding is difficult and/or unnecessary, but that seems to be the case
06:22 PM CaptHindsight: some people are grounders and some are floaters
06:24 PM CaptHindsight: you try to keep boats off the ground
06:41 PM _unreal: ok I'm back
06:41 PM _unreal: sigh
06:41 PM _unreal: christmas gifts. and issue with the AC and other things
06:41 PM _unreal: then she decided to yack for a while
06:42 PM JavaBean: if you still have your ears, congrats to didn't lose. also, hello.
06:43 PM _unreal: ?
06:43 PM _unreal: wtf.. theres a possum scratching at the window.
06:43 PM _unreal: hehe got to love the tropics
06:47 PM roycroft: mac os pisses me off sometimes
06:47 PM XXCoder: meal time?
06:47 PM _unreal: 100% AGREE
06:47 PM XXCoder: ok ill wait for possum meal ;)
06:47 PM roycroft: half an hour trying to figure out what i did wrong when i renamed my gitlab server and the mac refused to connect to it with the new hostname
06:47 PM _unreal: I tried to get a photo but it ran before I got to :(
06:47 PM roycroft: i had flushed all caches on the mac
06:47 PM roycroft: i could sssh to the machine
06:47 PM roycroft: but i could not connect to the web interface
06:48 PM roycroft: finally i rebooted the mac, and it works perfectly well now, of course
06:48 PM _unreal: roycroft, I do miss my old power mack
06:48 PM _unreal: laptop
06:48 PM _unreal: with ????? 190ish mhz cpu
06:48 PM roycroft: i still have my g4 powermac
06:48 PM roycroft: i rarely use it these days
06:48 PM _unreal: I use to us it for MP3's
06:48 PM roycroft: i use it when i want to watch a european dvd
06:48 PM _unreal: mp3's are no longer a BIG thing
06:48 PM _unreal: it got given away
06:49 PM roycroft: the dvd player is set to zone 2, or whatever zone it is they use in the eu
06:49 PM _unreal: oh this is entertaining
06:49 PM _unreal: my daughter is having EYE issues trying to scrape the cast iron flat griddle sitting on the charcoal grill
06:49 PM _unreal: LOL
06:49 PM _unreal: oh the enjoyment
06:50 PM _unreal: so she's trying to waft i away
06:50 PM _unreal: LOL
06:55 PM roycroft: and now the mac refuses to talk to the gitlab server again
06:56 PM roycroft: wtf is up with that?
06:56 PM * roycroft is not impressed
06:57 PM XXCoder: mac. thats explaination enough
06:58 PM roycroft: i suspect it may be a certificate issue
06:58 PM roycroft: the machine is in my private network, so i can't use a letsencrypt certificate
06:58 PM roycroft: i'm not going to buy a commercial cert for it
06:59 PM roycroft: so some time ago i created my own local CA, and installed my own CA root on this mac
06:59 PM roycroft: i generated a certificate for the gitlab machine and signed it with my CA
06:59 PM roycroft: hmm
06:59 PM roycroft: one more thing i can check though
06:59 PM roycroft: nope
07:00 PM roycroft: i was wondering if it was a reverse dns issue, but it's not - rdns matches forward dns, both of which match the certificate
07:01 PM roycroft: curl is happy with the machine
07:02 PM roycroft: ssh is happy with it
07:02 PM roycroft: gui web browsers refuse to connect
07:03 PM roycroft: awesome
07:03 PM roycroft: gina mccarthy will be biden's climate czar
07:03 PM roycroft: it will be good to see her back in the administration
07:47 PM _unreal: so my daughter juyst for the most part kicked my ass at foosball
07:48 PM _unreal: I did win one game though first round. she cough cough won every other game ther after.....
08:51 PM roycroft: so it gets more curious
08:51 PM roycroft: my other mac cannot connect to the gitlab server either
08:51 PM roycroft: but my linux laptop can
08:52 PM CaptHindsight: the walled garden
08:52 PM roycroft: it's semi-walled
08:53 PM roycroft: and i am pretty good at squeezing through the cracks when need be
08:53 PM roycroft: this time i have no idea what is going on though
08:53 PM roycroft: all i want to do is clone a project so i can do some work on it
08:55 PM roycroft: i guess i can clone it on to the linux machine, make a tarball of the clone, and scp that to the mac i want to use
08:55 PM roycroft: but eew
08:55 PM CaptHindsight: might be co-inky-dink but we have noticed some network oddness today
08:55 PM CaptHindsight: even with phone service
08:55 PM roycroft: this is all internal
08:56 PM CaptHindsight: likely the NSA activating some new spyware
08:56 PM CaptHindsight: or just random stuff
08:57 PM CaptHindsight: but that is weird, what do the macs do differently?
08:57 PM roycroft: i don't know
08:57 PM roycroft: they use the same dns servers
08:57 PM roycroft: they have the same root ca installed
08:57 PM CaptHindsight: sorry i can't be much help, my last mac was 1997
08:58 PM roycroft: they're basically just unix machines with apple's fancy ui stuff
08:58 PM CaptHindsight: toy for the kids
08:58 PM roycroft: which is why i use them for workstations
09:02 PM roycroft: i wonder if the firefox developer edition would give me some useful debugging/logging information
09:02 PM roycroft: the gitlab server logs nothing
09:03 PM roycroft: it doesn't even think i tried to talk to it
09:03 PM CaptHindsight: how about wireshark?
09:03 PM CaptHindsight: what actually hits the network from either NIC?
09:04 PM roycroft: i could run tcpdump on the gitlab server to see if it sees any traffic
09:04 PM roycroft: that would be a start
09:04 PM CaptHindsight: yes, the usual suspects
09:04 PM CaptHindsight: roycroft: I see you got laser
09:04 PM roycroft: i did get it
09:04 PM roycroft: and both of my eyes are still functional
09:05 PM CaptHindsight: is this for the 3d printer or are you building it for the mill
09:05 PM roycroft: i'm going to try it on the 3d printer
09:05 PM CaptHindsight: much success, ^5!
09:05 PM roycroft: and i'm frustrated enough with this gitlab issue right now that i may work on that tonight
09:06 PM roycroft: it seems most folks who do this mount the laser on the left side of the hot end
09:06 PM roycroft: there are all sorts of brackets just for that on thingiverse and elsewhere
09:06 PM roycroft: but i'm also thinking about getting a bed leveler for the printer, and that mounts in the exact same place
09:06 PM roycroft: so i have to decide how i want to deal with that
09:07 PM CaptHindsight: is the bed held in place at 3 points?
09:07 PM roycroft: no, two
09:07 PM CaptHindsight: 1 fixed and 2 ....... ah
09:07 PM roycroft: it's a kind of funky setup
09:07 PM roycroft: there are two rods in the back
09:08 PM roycroft: the front of the bed is unsupported - i printed some brackets to stiffen it
09:08 PM roycroft: and there are spring-loaded leveling screws on all four corners of the bed
09:08 PM roycroft: so i can get it pretty close with those
09:08 PM CaptHindsight: oh so you have manually level it
09:08 PM roycroft: it's been working fairly well - i just thought that getting the leveling probe might make things better
09:08 PM roycroft: yes
09:09 PM roycroft: the usual method, which i used, is to move the head two one corner, slip a pice of paper underneath the nozzle, and adjust that corner until the paper "sticks" a wee bit
09:09 PM roycroft: then repeat on the other three
09:09 PM roycroft: kind of like touching off a cutter on a mill with a piece of paper
09:12 PM CaptHindsight: does it creep over a short time (a day)?
09:12 PM roycroft: no
09:12 PM roycroft: it's pretty stable
09:12 PM roycroft: manual leveling is probably fine indefinitely
09:12 PM CaptHindsight: sure
09:12 PM roycroft: which is why i haven't gotten the probe to date
09:12 PM roycroft: and i'm still not itching to get it
09:13 PM CaptHindsight: if i were to bother I'd make it automatic
09:13 PM roycroft: but now that i have the laser, i have a decision to make since both would occupy the same space
09:13 PM CaptHindsight: sensor and small positioners
09:13 PM CaptHindsight: worm gear and small steppers or similar
09:16 PM CaptHindsight: the cheapie 3d printer levelling kits assume that the frame is square
09:16 PM CaptHindsight: machine frame
09:18 PM XXCoder: whats leveling kit do
09:20 PM roycroft: it probes the build plate so that the printer can compensate for unevenness
09:21 PM CaptHindsight: https://www.ebay.com/itm/FlashForge-Finder-3D-printer-for-parts-only/293900639078
09:23 PM CaptHindsight: self levels https://www.youtube.com/watch?v=0u4YBNzTWQ0
09:23 PM roycroft: i've never heard of that machine, but it looks liek a pretty good price
09:24 PM CaptHindsight: I picked one up a few months ago
09:24 PM CaptHindsight: they are all open box returns
09:24 PM roycroft: sure
09:24 PM roycroft: and probably most of them work fine
09:24 PM CaptHindsight: almost all have a very minor problem
09:24 PM roycroft: i just don't know anything about the machines
09:24 PM CaptHindsight: mine I think had a loose home switch
09:24 PM XXCoder: roy oh thought there was another system. thanks
09:25 PM XXCoder: i wish theres a system where it probes and tells me which knob to turn and how much
09:25 PM roycroft: they're kind of small
09:25 PM roycroft: 140x140x140
09:25 PM XXCoder: so its as close as possible, and it still adjusts but much closer is better for dimension accuracy
09:26 PM CaptHindsight: XXCoder: the levelling kits either just map the Z offsets from square or provide you with feedback for you when you use the adjusting screws
09:27 PM roycroft: i seem to have two choices:
09:27 PM roycroft: 1. instead of mounting the laser on the side of the hot end, remove the hot end from the bracket on the x axis and install the laser there every time
09:27 PM roycroft: or 2. don't use the leveling probe
09:28 PM XXCoder: theres nice system where you can put on and off but i couldnt find it again
09:28 PM roycroft: i don't plan on using the laser all that often, so choice 1 may be fine, but my inclination is to not want to bother with that
09:28 PM roycroft: the laser is no problem - it can be installed with magnets
09:28 PM XXCoder: https://www.aliexpress.com/item/4000848620716.html
09:28 PM roycroft: but the probe has to be installed fairly accurately
09:28 PM roycroft: and i would not want to have to calibrate the probe every time i install it
09:28 PM XXCoder: add some stop and its super repeatable
09:30 PM CaptHindsight: use alignment dowels
09:30 PM CaptHindsight: or ^^
09:31 PM roycroft: well the other thing is this:
09:31 PM roycroft: if i have to uninstall/install the probe whenever i use the laser that's almost the same as uninstalling/installing the hot end whenever i want to use the laser
09:32 PM roycroft: part of my thinking is that swapping the hot end in and out is a hassle, but since i don't plan on using the laser often, it's not that big a hassle
09:32 PM CaptHindsight: huh, hexchat goes ploop ploop when i backspace to the start of the text box!
09:33 PM roycroft: and if i start using the laser a lot i'll make a dedicated machine for it
09:38 PM XXCoder: interesting https://youtu.be/vvw6k4ppUZU
09:43 PM CaptHindsight: roycroft: make some mounting blocks that are very repeatable
09:45 PM CaptHindsight: http://www.scorchworks.com/Gcoderipper/gcoderipper.html
09:46 PM XXCoder: capt yeah saw that, its cool
09:47 PM XXCoder: i still want to try that lol
09:47 PM XXCoder: just use lcnc image to gcode, then run that script
09:50 PM Tom_L: is it projection or wrapped?
09:50 PM XXCoder: projection i think but could be wrong
09:51 PM Tom_L: says wrap but who knows
09:51 PM XXCoder: http://www.scorchworks.com/Gcoderipper/universal_litho2.jpg wrap
09:53 PM CaptHindsight: Map linear axis to rotary axis
09:54 PM CaptHindsight: Python source here http://www.scorchworks.com/Gcoderipper/gcoderipper.html#download
09:55 PM CaptHindsight: http://www.scorchworks.com/Gcoderipper/g_code_ripper_doc.html#wrap
10:00 PM XXCoder: f-engrave is free right?
10:02 PM XXCoder: ohhh https://gnipsel.com/fengrave/fengrave01.html
10:02 PM CaptHindsight: XXCoder: psst psst, I can get you a deal on it for $50
10:02 PM XXCoder: sure its in mail'